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How to execute a Ruby script in Terminal?
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251
Just call: ruby your_program.rb
or
start your program with #!/usr/bin/env ruby,
make your f...
Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
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edited Oct 26 '14 at 15:54
DilithiumMatrix
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How do I determine k when using k-means clustering?
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You can maximize the Bayesian Information Criterion (BIC):
BIC(C | X) = L(X | C) - (p / 2) * lo...
Algorithm to generate all possible permutations of a list?
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32 Answers
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Symfony 2: How do I check if a user is not logged in inside a template?
In Symfony 2 templates (using Twig), how can I effectively check whether a user is not logged in?
2 Answers
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Difference between Apache CXF and Axis
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Keep in mind, I'm completely biased (PMC Chair of CXF), but my thoughts:
From a strictly "can...
How to use JavaScript variables in jQuery selectors?
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var name = this.name;
$("input[name=" + name + "]").hide();
OR you can do something like thi...
How to check if a number is a power of 2
Today I needed a simple algorithm for checking if a number is a power of 2.
25 Answers
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What is the most efficient way to concatenate N arrays?
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20 Answers
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Jackson databind enum case insensitive
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In version 2.4.0 you can register a custom serializer for all the Enum types (link to the github issue). Also you can replace the standard Enum deserializer on your own that will be aware about the Enum type. Here is an example:
public...